Cutting insert with raised cutting edge

Details Cutting insert with raised cutting edge Cutting insert with raised cutting edge

1988-12-09

1990-04-10

Hartman, Judy

Cutters, for shaping

Including tool having plural alternatively usable cutting edges

With integral chip breaker, guide or deflector

B23B 2722

Patent

active

049155482

ABSTRACT:
A cutting insert for chipforming machining of metal workpieces is disclosed, said insert comprising opposed top and bottom surfaces (11) and (12) and a peripheral wall (13) extending therebetween. The insert has cutting edges at the juncture between at least the top surface and said peripheral wall, a land area (15), and a first descending surface (16) starting from the top inner margin of said land. A number of convexly curved spaced projections (23, 26) being formed on or adjacent said first descending surface, the upper surface of each of said projections being planar and located below the plane defined by the cutting edges (14).

REFERENCES:
patent: 4214845 (1980-07-01), Mori
patent: 4318645 (1982-03-01), McCreery
patent: 4507024 (1985-03-01), Stashko
patent: 4741649 (1988-05-01), Mori

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